If you won’t take my word for it that a game about mass-transit system design can be a tense, white-knuckle thriller, go play the free in-browser beta of Mini Metro yourself. You’re the administrator of the city’s subway, and stations (and passengers) are popping up all the time. The city, in its bureaucratic wisdom, allocates you just one upgrade per week: a new line, additional cars for existing lines, under-river tunnels and the like. Apply an upgrade inexpertly and the whole system suffers; misallocate too many and you’ll get fired. When your crowded metro is three days from the next upgrade and the clock is ticking slower than a sherpa’s heartbeat, you’ll know just how exciting a game about subway management can be.

Mini Metro is currently lobbying for a PC release on Steam Greenlight, but I asked Kiwi developers Dinosaur Polo Clubif the game was tablet-bound. “We’re definitely targeting tablets,” dev Peter Curry told me. “In fact when we were working on the prototype we were referring to the inevitable full game as the ‘iPad version’.”

This is going to be delightfully tactile on a touchscreen, what with the core gameplay being about drawing subway lines on the map. Watch the trailer below and I’ll keep you posted about release dates.